Cancer is not a straight line. It's up and down.
The straight line belongs to Man. The curved line belongs to God
The straight line cannot proceed through the torturous twists of life.
God draweth straight lines but we call them crooked.
There is no straight line to a dream.
I can't draw a straight line to save my life. I just can't draw.
The straight line is ungodly.
Draw a straight line and follow it.
Straight lines vary only in length, and therefore are least ornamental.
Everything in the universe goes by indirection. There are no straight lines.
We know there is no progress in a straight line.
There is no motion in a straight line. A straight line infinitely projected becomes a circle.